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Finding the Third Proportional to 187,930.13 and 396,819

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Solution

The third proportional to 187,930.13 and 396,819 is: 837,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,930.13 : 396,819 = 396,819 : x
  2. Step 2: Convert to fraction form
    187,930.13/396,819 = 396,819/x
  3. Step 3: Cross multiply
    187,930.13x = 396,819 × 396,819
  4. Step 4: Simplify right side
    187,930.13x = 157,465,318,761
  5. Step 5: Solve for x
    x = 157,465,318,761/187,930.13
  6. Step 6: Final answer
    x = 837,892.91

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.